نتایج جستجو برای: Hepatitis B
تعداد نتایج: 956172 فیلتر نتایج به سال:
Background: Hepatitis B virus infection is a worldwide health problem. Vertical transmission is a route of Hepatitis B virus infection that is regarded as a considerable factor in Hepatitis B virus prevention program all over the world. Objective: This study was conducted to screen the hepatitis B surface antigen, hepatitis B surface antibody and hepatitis B e antigen in pregnant women. Methods...
Background and purpose: Infection caused by hepatitis B virus is a major health problem and the most common known chronic infection. It has an important role in developing cirrhosis and hepatic cancer. Glutathione-s-transferase enzyme is one of the most important metabolic enzymes in cellular protection mechanisms such as: xenobiotic detoxification and metabolism and cells protection again...
Introduction: There are multiple reports of Acute Hepatitis B after blood transfusion inspite of good screening for Hepatitis B before transfusion. Therefore, occult hepatitis B is a serious concern for Blood transfusion. There is a lot of evidence that positive HBCAb in seronegative HBSAg blood donors is associated with occult Hepatitis B. Aim: Evaluation of the prevalence of HBCAb in seroneg...
background: hepatitis b with its complications has become one of the universal problems. injection drug use is one of the most important risk factors in the transmission of hepatitis b. therefore, we assessed hepatitis b virus prevalence among cases with a history of intravenous drug use (ivdu) as the first announcement-based study in this regard. materials and methods: the announcement based d...
Background: Hepatitis B vaccination has been included in routine immunization of all individuals according to WHO recommendations since 1991. Despite successful coverage, 3-5% of recipients fail to mount a desirable protection level of Ab. Vaccine failure results from: emergence of mutation, immune failure of individuals, decrease in vaccine potency, and etc. The quality of Hepatitis B va...
results the results of this study indicated that the overall hepatitis b vaccine acceptance rate was acceptably high. among all, 53.5% correctly identified that a vaccine to prevent hepatitis b virus infection had been available, 15% had a negative opinion, and 31.5% were neutral. the rations of all three doses of vaccination were 69.3%. conclusions among the respondents, 87% were currently mar...
background chronic hepatitis b consists of different clinical phases. laboratory and histological assessments can help differentiate the clinical phases of this disease and thus lead to better management. objectives this study was conducted to determine laboratory and histological characteristics of hbeag-negative and hbeag-positive chronic hepatitis b patients. patients and methods in this stu...
Background and Objectives: Hepatitis B virus (HBV) infection is a major public health problem worldwide. Islamic Republic of Iran is located in mesoendemic region (prevalence 2%-7%). The aim of this study was to assess prevalence of chronic HBV in Iran according to demographic characteristics. Methods: Medline, Embase, Science Citation Index Expanded, Ovid, Google Scholar, IranMedex, SID, Ma...
Abstract Background and objectives: Hepatitis B virus infection is a major health problem in worldwide. The prevalence of Occult and chronic HBV in hemodialysis patients is higher than standard in developing countries. People with occult HBV are negative for HBV surface antigen (HBsAg) but positive for HBV-DNA. We aimed to evaluate occult hepatitis B infection in patients under hemodialysis in ...
Delayed clearance of hepatitis B surface antigen was previously reported in a 38 year old woman after high dose chemotherapy with autologous peripheral blood stem cell rescue. Sixteen months later, this patient remained hepatitis B surface antigen negative, hepatitis B surface antibody positive, and serum hepatitis B DNA negative by polymerase chain reaction. Serial liver biopsies (one at hepat...
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